77256236 has 12 divisors (see below), whose sum is σ = 137103120. Its totient is φ = 38083920.

The previous prime is 77256229. The next prime is 77256301. The reversal of 77256236 is 63265277.

It is a self number, because there is not a number n which added to its sum of digits gives 77256236.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135731 + ... + 136298.

It is an arithmetic number, because the mean of its divisors is an integer number (11425260).

Almost surely, 2^77256236 is an apocalyptic number.

It is an amenable number.

77256236 is a deficient number, since it is larger than the sum of its proper divisors (59846884).

77256236 is a wasteful number, since it uses less digits than its factorization.

77256236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272104 (or 272102 counting only the distinct ones).

The product of its digits is 105840, while the sum is 38.

The square root of 77256236 is about 8789.5526621097. The cubic root of 77256236 is about 425.9034731741.

The spelling of 77256236 in words is "seventy-seven million, two hundred fifty-six thousand, two hundred thirty-six".